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ELECTROHYDROSTATIC PUMP UNIT
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Catalog excerpts

ELECTROHYDROSTATIC  PUMP UNIT - 1

ELECTROHYDROSTATIC PUMP UNIT MODULAR ELECTROHYDROSTATIC PUMP UNIT FOR INDUSTRIAL APPLICATIONS WHAT MOVES YOUR WORLD

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ELECTROHYDROSTATIC  PUMP UNIT - 2

Moog Electrohydrostatic Pump Unit Whenever the highest levels of motion control performance and design flexibility are required, you’ll find Moog expertise at work. Through collaboration, creativity and world-class technological solutions, we help you overcome your toughest engineering obstacles, enhance your machine’s performance, and help take your thinking further than you ever thought possible. This catalog is for users with technical knowledge. To ensure all necessary characteristics for function and safety of the system, the user has to check the suitability of the products...

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ELECTROHYDROSTATIC  PUMP UNIT - 3

Moog Electrohydrostatic Pump Unit PRODUCT OVERVIEW Moog Electrohydrostatic Pump Unit and Electrohydrostatic Actuation System Moog Electrohydrostatic Pump Units (EPU) are emerging as a viable option for industrial machine builders as the design combines the best of both electro-mechanical and electro-hydraulic technologies. The EPU is a highly integrated, compact alternative to traditional hydraulic solutions. This catalog describes the Electrohydrostatic Pump Unit used in such electro-hydrostatic actuation systems, like the Moog EAS. The EPU is able to operate in 2 or 4 quadrant...

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ELECTROHYDROSTATIC  PUMP UNIT - 4

Moog Electrohydrostatic Pump Unit PRODUCT OVERVIEW  Moog Electrohydrostatic Pump Unit and Electrohydrostatic Actuation System Performance Specifications EPU series Maximum flow Maximum pressure ports A and B Maximum housing pressure Pump version Radial piston pump, constant, dual or variable displacement Motor version Brushless servo motor: natural, fan or liquid cooled Temperature range Ambient Seal material Pilot pressure supply Operating fluid Mineral oil according to DIN 51524 , HFD, others upon request Allowable viscosity operational range 12 to 100 mm2/s (12 to 100 cSt) Recommended...

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ELECTROHYDROSTATIC  PUMP UNIT - 5

Technical Data Moog Electrohydrostatic Pump Unit Size 19 Natural Cooling, S EPU 019 A D xx xx C Characteristics Table Performance class Pump Displacement Maximum pump speed at 3.6 bar (abs) Maximum pump acceleration Maximum housing pressure Rated torque Maximum flow Maximum pressure ports A and B Flushing flow rate Maximum torque Rated speed Maximum speed Maximum speed see M = f(n) performance curve Continuous stall current Maximum current Torque constant Voltage constant Thermal time constant Winding inductance Power connector Feedback connector Signal resolver connector rotatable Thermal...

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ELECTROHYDROSTATIC  PUMP UNIT - 6

Technical Data Moog Electrohydrostatic Pump Unit Size 19 Natural Cooling, S EPU 019 A D xx xx C  Motor Performance Curves M0 C Flow @ 19 cm3 [l/min (gpm)] 28.3 47.2 66.1 (7.5) (12.5) (17.5) Maximum torque without field weakening Maximum torque with field weakening Continuous torque if recommended drive size is used Maximum torque with field weakening if recommended drive size is used Continuous torque at 110 K temperature difference over ambient, max. winding temperature 150 °C (302 °F) Notes: Motor performance with 565 VDC link voltage Motor performance doesn‘t take the pump efficiency...

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ELECTROHYDROSTATIC  PUMP UNIT - 7

Technical Data Moog Electrohydrostatic Pump Unit Size 19 Natural Cooling, S EPU 019 A D xx xx C Mounting Pattern 93 (3.661) 1. se a spring-type pin with nominal diameter U of 4 mm (0.16 in) (e.g. 4x12) according to ISO 13337 2. rea of A - surface flatness: - surface roughness: 3. 12, minimum 25 mm (0.98 in) deep. M Recommended: Use 8 hexagon head cap screws M12 (property class 12.9, minimum length 45 mm (1.8 in)) according to ISO 4762. Tightening torque 120 + 10 Nm (1,062 lbf in + 89 lbf in). Note: Dimensions mm (inch) Port dimension in counter surface Operating ports Flushing port Leakage...

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ELECTROHYDROSTATIC  PUMP UNIT - 8

Technical Data Moog Electrohydrostatic Pump Unit Size 19 Natural Cooling, S EPU 019 A D xx xx C  44.2 (1.740) Note: Dimensions mm (inch) Rev. J, July 2022

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ELECTROHYDROSTATIC  PUMP UNIT - 9

Technical Data Moog Electrohydrostatic Pump Unit Size 19 Liquid Cooling, S EPU 019 A D xx xx W Characteristics Table Performance class Pump Displacement Maximum pump speed at 3.6 bar (abs.) Maximum pump acceleration Maximum housing pressure Maximum flow Rated torque Maximum torque Rated speed Maximum speed Maximum speed see M = f(n) performance curve Continuous stall current Maximum current Torque constant Maximum pressure ports A and B Flushing flow rate Voltage constant Thermal time constant Winding resistance at 25 °C Winding inductance Power connector Feedback connector Signal resolver...

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ELECTROHYDROSTATIC  PUMP UNIT - 10

TECHNICAL DATA Moog Electrohydrostatic Pump Unit Size 19 Liquid Cooling, S EPU 019 A D xx xx W Motor Performance Curves H0 W Maximum torque without field weakening Continuous torque at 110 K temperature difference over water, max. winding temperature 150 °C (302 °F) Maximum torque with field weakening Notes: Motor performance with 565 VDC link voltage Motor performance doesn‘t take the pump efficiency into account Pressure difference ∆p = pA – pB Motor performance determined with respective max. cooling water flow rate, see characteristic table

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ELECTROHYDROSTATIC  PUMP UNIT - 11

Technical Data Moog Electrohydrostatic Pump Unit Size 19 Liquid Cooling, S EPU 019 A D xx xx W Mounting Pattern 93 (3.661) 1. se a spring-type pin with nominal diameter U of 4 mm (0.16 in) (e.g. 4x12) according to ISO 13337 2. rea of A - surface flatness: - surface roughness: 3. 12, minimum 25 mm (0.9 in) deep. M Recommended: Use 8 hexagon head cap screws M12 (property class 12.9, minimum length 45 mm (1.78 in)) according to ISO 462. Tightening torque 120 + 10 Nm (1,062 lbf in + 89 lbf in) Note: Dimensions mm (inch) Port dimension in counter surface Operating ports Flushing port Leakage...

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ELECTROHYDROSTATIC  PUMP UNIT - 12

Technical Data Moog Electrohydrostatic Pump Unit Size 19 Liquid Cooling, S EPU 019 A D xx xx W Installation Drawings MO W 1) Cooler outlet G3/8“ (thread depth max. 7 mm) Note: Dimensions mm (inch)

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ELECTROHYDROSTATIC  PUMP UNIT - 13

Technical Data Moog Electrohydrostatic Pump Unit SIZE 32 Natural Cooling, S EPU 032 A D xx xx C Characteristics Table Performance class Pump Displacement Maximum pump speed at 2.7 bar (abs.) Maximum pump acceleration Maximum housing pressure Maximum flow Rated torque Maximum torque Rated speed Maximum speed Maximum speed see M = f(n) performance curve Continuous stall current Maximum current Torque constant Maximum pressure ports A and B Flushing flow rate Voltage constant Thermal time constant Winding resistance at 25 °C Winding inductance Power connector Feedback connector Signal resolver...

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